高硫铝土矿分散态焙烧脱硫试验  

Experiment of Dispersion Roasting Desulfurization of High-Sulfur Bauxite

作　　者：陈延信[1] 李骏[1] 赵博[1] 丁松雄[1] 

机构地区：[1]西安建筑科技大学粉体工程研究所,西安710055

出　　处：《有色金属（冶炼部分）》2016年第3期19-21,25,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家科技支撑计划项目(2012BAA08B00)

摘　　要：采用自制的分散态焙烧炉,对硫含量1.61%的高硫铝土矿进行焙烧脱硫。考察脱硫效果随焙烧温度和时间的变化规律,并探讨了焙烧脱硫的机理。结果表明,在650℃焙烧120s时,分散态焙烧可以实现76.98%的脱硫率,焙烧矿残硫为0.07%,延长焙烧时间或升高温度对提高脱硫率帮助不大。High-sulfur bauxite bearing 1.61% S was desulfured by roasting in self-made dispersion state roasting furnace. Effects of roasting time and temperature on desulfurization efficiency were investigated, and desulfurization mechanism was discussed. The results show that desulfurization efficiency is 76.98% with 0.07% sulfur residue in roasted bauxite after dispersion roasting at 650 ℃ for 120 s. Higher temperature or longer time have few effects on improvement of desulfurization efficiency.

关 键 词：高硫铝土矿 分散态焙烧 脱硫率 脱硫速率 

分 类 号：TF821[冶金工程—有色金属冶金]